The CT-650 is one of the rarest personal computers. We are aware of five still in existence. We know of the one in our collection, two that are still owned by the Becker family, and one other owned by Howard Suissa in Edmonton.
A CT-650 was sold by Sotheby's in their History of Science and Technology, Including Fossils, Minerals and Meteorites auction of December 2019.
In May 2023 we became aware of another one of these computers that is located in France. If we get more information on it, we will include the information here.
There are likely still a few out there somewhere! But not many...